
濟南幸福宝丝瓜草莓芭乐榴莲注塑加工廠多年行業經(jīng)驗 支持(chí)定製 廠家直(zhí)銷 物美價廉
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在注塑過程將近結束時,螺杆停止旋轉,隻是(shì)向前推進,此時注(zhù)塑進入保壓階段。保壓過程中注(zhù)塑機的噴嘴不斷向型腔補料,以填充由於製件收縮而空出的容積。如果型腔(qiāng)充滿後(hòu)不進行保壓,製件大約會收(shōu)縮25%左右,特別是筋處由於收縮過大(dà)而形(xíng)成收縮痕跡。保壓壓力一般為充填最大壓(yā)力的85%左右,當然要根據實際情況來(lái)確定。